Stoking apparatus.



PATENTE@ abzjmggog.. n J.; w., @50am summe AEPARATUS. APPIQATOH PLD JULY 21,1906.

4 SEEETS-SEEBT l` PATENTE@ mmm, 1910.35

e'. W. CROSBY.

A s'mmc- APPARATUS.

mummy@ FILED JULY 21,1906.

glsxsmswmm 2.

I BATENTED-MAYVZS, 1908..

G. W. CROSBY. STQKING APPARATUS., APPLIOATION FILED JULY 21,1906..

4 SHEBTS-SHEET 4.

y IIEITED sTAIEs PATENT OEIEIIOE.

mechanis 2Q- nii whom fit may concem: `YBe It known that I, CLARENCE W. CROSBY,

of fuel., and after the othergreenfuel just laid.

OLZAEENOE w. CROSBY-,OF CHICAGO, ILLINOIS, AssIeNon -ro INTERNATIONAL sroKEn4 COM-4 PANY, OF CHICAGO, ILLINOIS, A CORPORATION OF SOUTH `DAKOTA.

STOKING APPARATUS.

acitizenofgthe United States, residing at Chicago, In the county of Cook and Stateof Illinois, have invented av certain new and useful'IInprovement in Stoking Apparatus,

of which t e following is a full, clear, concise, and exact description, reference being had 'to the accompanying drawings, forming .a

'part' of this specification.

My 4invention relates to apparatus for -stoking furnaces, and has for its general objectthe provision of an improved'overfeed stolnng mechanism whichl is especially adaptable for use in firinglocomotives, though the invention `is not to be 'restricted to` this y adaptation ,'thereof.

In practicing my invention, I employ that-casts streams of subdivided coal in thefiire box, these streams of coal being spread abreast, preferably longitudinally of the'fire box. After the coal has fallen, itlays in rows upon the bed of fuel, andas these Vrows may be comparatively thin, they lmay bc deposited upon the bed of fuel without breaking up the formation of the burning bed of fuel. fI'n accordance with one feature of my invention, I employ a device .which disposes these rows of fresh fuel upon the burning bed redetermined number of rows ofgreen fuel fiave been placed 1upon the :burning bed, the distributer of the green fuel is uickly returned to an initial position, wliereaiiter the operation previously describedmay be continued. By this arrangeof tl'ieffseries of rows of greenfuel, which by this "time may have formed a part of the burning bed of fuel. In the formation of ea'chrow, I also desirably impart to the dis- .tributerfa gradual movement as the fuel is being deposited and a uick return movenient to another iuitia. position, so that green fuel is not likely td be placed upon ferred embodiment of my invention, I einploya'dis'tributer which is movedto dispose a'plur'ality ofrows of fuel upon a burning .V "offfuel .and is caused to returnto an initial'posfitionfsuddenly, andwhich distributer infn'1"('iyc'fcl`v gradually -so as to lay the fuel along lts `courseinthe different rows, one by one,

Specification .of Letters Patent.

'Application filed July 21, 1906. Serial No. 327,244.

Thus, in the pre- :Patented May) 2,6, isos.

and quickly return to anotlieriinltialposition i with reference to this operation, thei'p'urposes sta-ted. i v In the preferred embodiment of theinvention the fuel is not thrown-With-sucliforce as to disturb the fuel bed structure, though I do not wish to be limited .to :this aspect ofthe preferred `forni of they invention. l That feature of my `invention :whereby rows of green fuel are placed abreast on vthe previously formed bed of fuel, is important.

My invention has other features and aspects which will be more fully vhereinafter set forth in connection withthe' accompany--l ing drawings, in which- 1y 'i Figure l is a sectional elevation of the preferred form of the invention. Fig. 2 is-a side elevation of the structure. slioini in Fig. l.. Fig. 3 is a view in the direction of arrow a of Fig. l, bf certain parts of-` the structure. Fig. 4 -is a view on line bb .of Fig; 2,V certain of the parts, however, being omitted.. Fig. 5' is a plan view of 'a partof fthe mechanism- Fig. 6 isa view on linec c-oflFig. 2. Figw? is a detail of a part of the mechanism -enter-` ing into the structure. Figi.. 8 is a view on a larger scale, of a compound dog or detent lcompound dog or detent. l10 is a view in the direction of arrowfefof Fig.` showing vthe compound dog and certain partsimmediately associated therewith. Fig. 1l is a sectional view on line f Vof Fig. l. .Figiv 12 is a sectional View on linegof Fig. 1;. g

Like parts are indicated by similar' characters of reference throughoutfthe different figures. Y

The device of my invention may, `ifdesired, be' disposed upon the door l of a fire box, which door is rovidedfwith aninsetting throat 2 through W ich thefuel is dischargedA into the interior of theiirebox, xand'whichthroat communicates with. the throatedfportion 3 of a fuel injector, this throatedportion -8 being fianged ate, whereby it .maybe at,-`4`

tachedto the door 1. The throat 3 coni-,- municates withy the receiving chamber 5', into the 'top of'which green fuel preferabljcoal subdivided to sufficient. extent so that: it may be properly fed and distributedds dis-` posed. Within the receivingchamber-V 5 there is disposed an injector 6 of any table construction, whose pperating; shaf` :'ZfQInay said distributer in one of its positions.

be driven by any suitable form of motor, such as the turbine construction illustrated clearly in Fig. v6, the blade Wheel'S of which is keyed tothe driving shaft 7 Inasmuch as any suitable mechanism may be employed for operating the injector and inasmuch as iany suitable injector may be employed for discharging the fuel into the'furnace or fire lbox, I willnot further describe these parts that I have embodied in the preferred form of my invention.

I provide a fuel distributer or fuel guide 9 Ain front of the throat 2, so that the fuel that finds swift exit from the throat 2 is guided and distributed according tothe method of operation of thedevice 9. This distributer is desirably substantially circular at' its ends and of the shapes in cross-section at the lines f and g and' elsewhere in cross-section of substantially the shapes shown in Figs. 1 1 and 12. The lower portion of the distributer 9, when occupying the position illustrated in Fig.- 1.,*is substantially semi-cylindrical with an .axis

Y that may preferably, -if desired, be made.

coincident with the axis of the throat 2 withv The upper portion of the distributer 9 above the horizontal-plane (considering the structure in.

the position shown in Fig. 1) is so shaped as tovcoperate with the lower portion 'of the distributerprolperly to distribute the coal in the fire box when the proper movements are imparted to said distributer.. The distributer is so shaped upon its interior, that the fuel will not have such violent contact therewith as to overcome the proper emission thereof from the distributer, while the upper ortion of the'distributer causes the injected uel to be directed sufficiently downward for the purpose of the stoking o eration.

In forming each row of fue in the fire box, I employ mechanism thatI gradually moves the distributer in a plane coincident with the row of fuel that is to be laid, whereafter they distributer is quickly restored, the restoring movement being-preferably effected while the distributer takes its position for forming the next row of fuel. The gradual movement of vthe distributer is preferably in a downward direction, so that the formation of` the rows of reen fuel connnences at the front or furt er end of the fire box and terminates at the other or backend of the fire box, that end .of the fire box contiguous to the distributer 55 (using locomotive parlance). The quick rel turn. motion of the distributer effected after therowis 4finished -at the'vfack end of the fire box. Y I do not wish to be limited, however, to 4thisparticular method of con' trolling theo .eration of the distributer. In addition to t up and. down movement of' the distributer, I partially rotate the dis'- tributer so that"the` art above the plane of the axis4 oflthejdistritiuter in the position the inleg- -1, is.

moved throughout an arc that is suited to the width of the iire box. In the "embodiment of the invention illustrated, this portion of the Adistriburter 9 is moved throughout an arc that approximates one hundred and twenty degrees. The distributing spot 9 is so shaped that in addition to its ca acity to form the rows of green fuel longitu inally of the re box, it nevertheless can be caused to locate the streams of fuel abreast of each other throughout the width of the fire box. The i shape of this distributer is also such` that at -its end near the throat 2 it will gather thev flying particles of fuel, and where it is bulged ithe most, the fuel will be properly engaged and dischar ed from the spout without hav-1 ing such vio ent contact therewith as to pre# vent its ldeposit at the proper and selected portions of the fuel bed, notwithstanding the angular position of said spout with reference' to the throat 2. In order that this o eration of the distributing spout 9 may be e ected'," I desira'bly employ the operating mechanism illustrated.r The distributer..orfspontghas two ears 10 that are' rigid with respect thereto and which are joined by a shaft or wrist 11 that is engaged by a bearingA 12 carriedby anv operating arm 13 that is moved inland outor reciprocated by means of the mechanism to* be described, whereby the distributer 9 is rotated upon a shaft 14 that is supported at the lower free ends of a bracket construction 15, whereby the distributer 9 is moved in the formation of each of the different rows of green fuel. The bracket construction- 15 is "100 adapted to be reciprocated or moved back and forth in a direction transverse to the lengths of the rows of fuel, whereby-these rows lof fuel ma'ybe formed side by side, as hitherto stated. 105

In order that the operating mechanism may be disposed upon the exterior of the fire box, I provide a curved slot 16 whose center is coincident with the axis of vthe throat 2. The bracket formation 15 and the link 13 project through this slot 16. The link 13 is linkedV to an operatingbar 17 provided with aroller l8- which may be constructed and mounted as illustrated particularly'in Fig. 1, this roller 18 being ladapted to ride upon a run-way 19, whose direction is oblique or Islanting with respect4 to the furnace door.,

whereby the link 13 is reciprocated for thel purposes stated. The descent of the distributing spout 9 is gradual and it'selevation. is sudden-to which end thefroller 18 rides down on the inclined track 19 toward the furnace dooi1 1r and is -brought suddenly to the highy point of the track 19 after it has finished its downward journey upon said track. In 125 rder -lthat this result Ililiay be accomplished,

emp oy a spring or ot er suitable agency which is placed under stress or tension by e Y rotation of the ring 21 in a counter-clockwise direction by4 mechanism to be 'setfforth 130 esame When the roller 18 has reached the lower limit of its travel,- said spring is placed under suiiicient ytension suddenly to restore the roller to the other end of the track, but during the time that the spring is being placed under this tension, a compound dog or detent 22 is effective to prevent the operation of the spring and the rotation of the ring 24 until the roller hasreached the lon'rv part of the track 19, as stated. The .high end of the spring 20 is. anchored to an extension 23 of a ring 24 (to which the bracket 15 is secured), the ring carrying a series of locking lugs 25, and the lower end of said spring 2 9 is, anchored to the ring 21, which latter ring is gradually rotated a predetermined distance in one direction' and is restored to its initial position by movement in areve'rse direction, as will appear.- W'hile the ring 21 is moved gradually in one direction, the spring 2O effects av gradual though intermittent movement. of the ring 24 in the same direction, and this movement of the ring 24 is made'intermittent because of the compound dog 22, the lower member 26 of Which is in engagement With-the vertical side 27 of a lug 25, While the spring 20 is having its tension increased, the engagement of the parts 25, 26 being broken when an incline 28 traveling with the yring 21 is brought under the incline 249 of the comepound dog, whereby said dog is elevated against t-he force of a spring 30, whereupon there is nothing to prevent the action of the spring 20, which then moves the vring 24 a step. After 'this escape of the compound dog from the. engaging'lug 25, the spring 30 forces the descent of the dog 22, whereby the nose 26 is brought into the path of the surface27 of the next lug'25, whereupon, the lovver end of the springl 2O continuing to rotate with the ring 21, said spring is again placed under tension preparatory to the time When the next ensuing surface 28 Will ride under the surface 29 to again relieve the spring 2() o f its impediment (25), whereupony the ring 24 is suddenly rotated another stepagain to restore the distributer to its raised position by causing the roller 18 to ascend the incline 19. y

` It will be seen particularly by reference to Figs. 1 and 5 that the elements 1.3,.17'and. 18 are mounted upon` the innerring 24 so that. each time the said inner ring is moved a step the roller 18 is moved toward the high end of thetrack 19, the track 19-moving'undere nea'th the roller 18, whereby the said roller is caused to roll upon 'the track, due to the Weight Aof the distributing spout A9acting through the intermediation of the connections 10, 11, 12, 13 and `It will thus be seen how the spout 9 is moved gradually iny one direction by the riding action f. of the` rollerv 18 upon the track 19 and howitis moved rapidly in-the reversel direction by the'actiorr of the spring` 20. The extreme posi-tions' occupied by the distributing spout 9 in form` i.

' the regulating mechanism 31,32, the pinsi33' (carried at the upper end-oftheH-bar 1 7.) are;`

moved. to the selected positionin thesustain-,- ing slots 34, said pins 33 thus constituting@ shift-ableitrunnion supportv The ring 21' is cans-ed :tofrotateinfa 'counter-clockwise direction through the sanie-l langle that the ring 24 rotatesthrough',-y the,

rotation of the' ring v2L.being,continuous While the rotation of the `ring.24, though gradual, is step-by-step, the purpose of 'which rotation of the ring 21 is tde/anse the'bodily movement of the link 13.', and bracket 15 throughont a range of travel ,commensuia tie With thevid th of the fire bei, Wherebyfthe entire Vfire box has'layersof green-.fuehdis tributed thereover preferably longitudinally thereof, vthe groove 16l permittingoffthis movement ofthe parts 13', 15', etc; v. Any suitable means maybe ,emplo'yedv'for effecting the rotation of the ring 21. f1 have shown a gear Wheel 35 driven by means of intermediate gearing 36 that' isinterposed between the'wheel 35 andthe. shaft .7. This gear Wheel 35 cooperates withalimited num-v ber of teeth 37 providednponfthe.ring21,.

-Whereby said ring is rotated gradually- Vthe number of teeth 37 being:suitedto` thefnumf i ber of rows of Vfuel that arelto be laid in'each cycle of operations of thehiechanism, and, in order that the distributing `spout 'may'bef quickly restored to` its initialv position '(regarding now its movement in distributing rows of' fuel across the lire boX) I soform the" gear Wheel 35 that When it has performed its office-in rotating -thering 21 'the reY `uired eX- tent, it-Will escape the teeth 37, "w erleuponthe spring 38 Which is anchored atone end to the ring 21 and at the v40ther end tothfe' doorof the furnace, restores the ring 21 by' moving it'j in' a clockwise direction, bywhich time:thevv gearfivheel has been brought into position tic to reng-age the teeth 37 {to initiate another v lle a comparatively Wideg'ap"351 between two' adjacent ,teeth of thefwheel 35, this space enabling the teeth 3-7 to pass by said Wheel when thespring 38 is tooperate. j order that the ring 24 may at thefsame.timeebe'refV stored to its normal position through the` ac:-

tion of the spring 38 andthe intermediation of the spring 20, thepin 39 (carried'by the Wheel 35) engages vthe pin40upon the com- :pound dog, whereby said dog is raised against Athe action ofthe spring 30.

0 Suitable locking bars 43,' 44 are -employed to maintain the stems vof the'devices 31, 41 inthe positions to which they are rotated. By way of a short rsum, it willbe seen that -the'track 19 carried vby the outer ring 21,V govlgerns the elevation and depression of the distributings'pout 9 in the formation of the different rows of fuel, while the inner ring 24, by its intermittent movements, effects the movement ofthe-bracket'15 carrying the distributing spout 9 in a curved spout is positioned to enable it to form the different rowsoffuel in thefire box, the axis of 'rotation-of the support 15 coinciding with the axis of the distributing spout 9 when said spout occupies the position illustrated in full lines in Fig. 1, these axes always occupying,

the preferred embodiment of the invention, the same plane.

lB'y reason of the compound movements' nnparted 'to the` distributing spout 9v by the devices 13 and 15,- theexit opening of said spoutis directed to form the dierent rows of fuel andthe spout itself is, looking down on it, pointed vtovvardhe'different parts of the 9` may rotate 'is' itself bodily rotated about an axis that' is coincident with the axes of the throat 2 and of the spout-when said spout occupies the' osition shown in full lines in 1.' Inet er words, the mounting 14 for the s out is moved from side to side and -desirab y infa curvilinear path; though I do not wish to be limited to the precisedirection in which the said mounting is moved. It will b e seenthat the axis. of'rotat'ion ofthe mount-- 'ing 14 is coincident with the path followed by thefuelas it is injected inte'the distributing s out 9. The process herein disclosed is claimed in m copending application Serial No. 327,245, ed July 2 1, 190e.

'It willbe seen that I have illustrated a,

Stoker including a distributing spout which is swin inglyl ,mounted, the mounting `upon vwhich the spout is swung beingthe shaft 14,

sult of whose operation is the distribution of after they are laid.

In the claims I speak of quick return movements of the distributing spout, which I 8.5 mean thatthe `spout isreturned tof an initial rows of fuel that are-distinct from each other may be determined by the adjusting device path, whereby 'said `directionsgradually tributing spout wit :mounting upon which the support'for the fire box, as'th'e shaft 14upon which the spout several rows of fuel.

and a rotatable mounting for said support,

osition after it has eHected distribution of el, the return being soquick that the spout has had no appreciable op ortunity for distributing further fuel whi e: it is. returning to itsinitial position.

Whilelhave herein shown Aand particularly. described the' preferred embodiment of my invention, I do not wish to be'limited to the precise constructionshown, 'as modiications may be `made without departing from the spirit of my invention, but,

Having thus describedmy invention, I claim as new and desire to secure -byLetvters-Patent: 1. A stoking lapparatus including a dis- 30 tributings out, mechanism for elevating and lowering y'the discharge end thereof for feeding fuel, and means whereby said mechanism movesfsaid discharge end in one of these "and-iii"thether"direcg5 tion quickly.

2. "A stoking apparatus including a disits support', a rotatable spout is carrled, and mechanism for elevating and lowering the discharge end of the spout for feeding fuel and serving to move said mounting gradually in one" direction and quickly in the return direction.

3. A- stoking apparatus including a distributing s out, mechanism for elevating and lowering t e discharge end thereof for feeding fuel, said mechanism including a link 13 attached at one end to the spout, a support 17 to which the other end of the link is attached, an inclined track upon which said support rides', a rotatable mounting upon which the support for-'the spout is carried, and means serving to move said mounting in one direction and quickly in the return direction.

4. A stoking apparatus for feeding fuel in rows, 'including a distributing spout, a support therefor, a rotatable mounting upon whichv th/'support for the spout is carried, andjv mechanism for elevating and lowering the discharge end of the spout for laying fuel and for moving-said. mounting a step in one direction after the .spout has laid each of 5?;A'stoking apparatus including a dis- 115 tributing s out,-mechanism for elevating and loweringt e discharge end thereof for feeding fuel, said mechanism including a link 13 attached at one end tothe spout, a` support 17 to which the other end of the link is at- -120 tached, an inclined track upon which said support rides, a rotatable mounting upon which the support for the spout is carried, and `means'for moving said mounting-stepby-step in one direction.

-6. A stoking'apparat'us including a distributing s. out, mechanism for elevating 'and lowering tigev discharge end thereof for feeding fuel, said mechanism including a link 1 3 attachedat' one end tothe spout, a support. 130

11nd. of the upon x hoh L am?? b2@ moumir i* 'hbo-spout "o :mom L and fair-1:

c eciaonmid a quick fo o said mounting m.. the op? 1 i fof. swmgmggmdpoo .movement vof v fuel, and foi1 moving discharge so l for eectmg the and the of the spout 'm yns which the support for the spout is carried,

' for returning th'e spout to its initial position after itv has laid said rows of fuel.

20. A Stoker including a distributing spout, a rotatable mounting therefor, and

mechanism for effecting the graduall rotation l of said mounting in one direction and a l quick restoringmovement of said mounting, z

and for swinging said spout slowlyT in a direction angular to the movement imparted to the spout b the rotation of its rotatable mounting an for quickly returning said spout after it has fed a stream of fuel.

21. A stoker for feeding fuel in rows, including a distributing spout, a rotatable mounting therefor, and mechanism for effecting a step of a rotating movement of said mounting in one direction after each of several rows of fuel is laid, anda quick restoring movement of said mounting, and for swinging said distributer gradually upon its mounting in a'direction angular to the vmovement imparted to the spout by the rotation of its rotatable'mounting and for quickly returnifng1 saidfspout after it has fed astream of 22. A Stoker including Va distributing spout, -a rotatable mounting therefor, and mechanism for effecting step-by-step rotation of said mounting in one direction and a quick restoring movement of said mounting, and for swinging said spout gradually upon its mounting in a direction angular to the movement imparted to vthe spout by the rotation of its rotatable mounting and for quickly returning said spout after it has fed a stream of fuel.

23. A stoking apparatus including a distributing spout, `a support therefor, a mounting upon which the support for -the spout is carried to enable the fuel to be laid in rows, and mechanism for elevating and lowerin the discharge end of the spout for laying fue and for moving said mounting a step in one direction after the spout has laid each of sev'- eral rows of fuel.

24. A stoking apparatus including a-distributing spout, a support therefor, a mounting uponvwhich the support for the spout is carried to enable the fuel to be laid in rows, mechanism for elevating and lowering the discharge end of the spout for laying fuel and for moving said mounting astep in one direction after the spout has laid each of several rows of fuel, and for returning said mounting to its initial position.

25. A stoker for feeding fuel in rows, including a distributing spout, and mechanism for elevating and lowering the discharge end of the spout to form each row of fuel, for moving the discharge end: of said spout a step in one direction transverse to the direction of the rows of fuel aftereach of several rows of fuel has been laid, and for returning the discharge end of said spout'to its initial position 'after a plurality of rows of fuel have been laid.

In witness whereof, I hereunto subscribe my namethis 19th day of June A. D., 1906.

' CLARENCE W. CROSBY.

Witnesses:

G. L. CRAGG, i LEON E. STROH. 

